Hardware Timer Delay

[kwabena]

Sir / Madam

How do i modify the code below for the characters to be
sent to the console window with 2 seconds Hardware timer delay,
with respect to NMIX0016.


#include clib\common51.c
#include clib\syslib51.c
#include clib\stdio.h
#include clib\fputc.c

main()
{
int i;

/* print A to Z to serial */
for(i=0x41; i < 0x5A; i++)
fputc(i,stdout);

/* back to monitor prompt */
#asm
LJMP H'30
#endasm
}

[nmitech]

Please see the Timer tutorial on the web site below,
http://www.8052.com/tuttimer.phtml
Look to me, you can import the Detecting Timer Overflow assembly code in to your program using compiler directives below,
#asm
/* assembly code here */
#endasm
and add value counts on your outer loops to get your desire delay time

[kwabena]

Dear sir

I modify The TINYTEST code to print
characters every one seconds, but
when i compile the code it generate
error please below is the code. What
should i do to have it compile and execute
as i wish. Thanks

#include clib\common51.c
#include clib\syslib51.c
#include clib\stdio.h
#include clib\fputc.c


int i;

One_Second();
fms();

/*..................................................................*/

main()

{


for(i=0x41; i < 0x5A; i++)
{

fputc(i,stdout);

One_Second();


}


}


/*..................................................................*/

One_Second()

{
unsigned char d;

/*/ Call fms() twenty times */
for (d = 0; d < 20; d++)
{
fms();
}
}


/*..................................................................*/


fms()

{

/*/ Configure Timer 0 as a 16-bit timer */
TMOD &= 0xF0;
TMOD |= 0x01;

ET0 = 0;

/* / Values for 50 ms delay */
TH0 =0x3C;
TL0 =0xB0;

TF0 =0;
TR0 =1;

while (TF0 == 0);

TR0 = 0;
}

[nmitech]

#include clib\common51.c
#include clib\syslib51.c
#include clib\stdio.h
#include clib\fputc.c
#include clib\iosfr.c

#define TCON 0x88
#define TMOD 0x89
#define TL0 0x8A
#define TH0 0x8C
#define IEN0 0xA8

/* --- SmallC doesn't support header prototype functions --- */
/*
One_Second();
fms();
*/


/*................................................. .................*/

main()

{
int i;

/* Configure Timer 0 as a 16-bit timer */
/* TMOD &= 0xF0; TMOD |= 0x01; */
OUTSFR(TMOD, (INSFR(TMOD) & 0xF0) | 0x01);

/* disable TMR0 OVFL interrupt */
/* ET0 = 0; */
OUTSFR(IEN0, INSFR(IEN0) & 0xFD);

for(i=0x41; i < 0x5B; i++)
{

fputc(i,stdout);

One_Second();

}

/* go back to monitor prompt */

#asm
LJMP H'30
#endasm

}


/*................................................. .................*/

One_Second()

{
int d;

/* Call fms() twenty times */
for (d = 0; d < 20; d++)
{
fms();
}
}


/*................................................. .................*/


fms()

{

/* Values for 50 ms delay */
/* TH0 =0x3C; */
OUTSFR(TH0,0x3C);

/* TL0 =0xB0; */
OUTSFR(TL0,0xB0);

/* clear ovfl flag & start timer */
/* TF0 =0; TR0 =1; */
OUTSFR(TCON, ((INSFR(TCON) & 0xDF) | 0x10));

/* wait till ovfl flag set */
/* while(TF0 == 0); */
while ((INSFR(TCON) & 0x20) == 0);

/* stop timer */
/* TR0 = 0; */
OUTSFR(TCON, INSFR(TCON) & 0xEF);
}



FYI: Address Registers information are in the document link below,
http://www.newmicros.com/store/product_manual/nmix-0016-oem.html